CN105485675B - A kind of turbulent burner with abrasionproof wind - Google Patents
A kind of turbulent burner with abrasionproof wind Download PDFInfo
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- CN105485675B CN105485675B CN201510998044.2A CN201510998044A CN105485675B CN 105485675 B CN105485675 B CN 105485675B CN 201510998044 A CN201510998044 A CN 201510998044A CN 105485675 B CN105485675 B CN 105485675B
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- China
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- air
- channel
- air channel
- abrasionproof
- abrasionproof wind
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of turbulent burners with abrasionproof wind, including circular First air channel, the inner second air channel and outer second air channel being successively set on from the inside to the outside in the circumferential direction of First air channel, and the abrasionproof wind channel on the wall surface between First air channel and inner second air channel is set, and the air inlet in abrasionproof wind channel is met to inner second air flow direction.Turbulent burner is at work, part inner second air flows into First air channel by the abrasionproof wind channel out of inner second air channel, and wash away First air vias inner walls face, to which the most of coal dust for carrying First air and First air vias inner walls face are isolated, prevent pulverized coal particle from causing to wear to First air vias inner walls face.
Description
Technical field：
The invention belongs to the fields that boiler uses the burner of the stronger coal of abrasiveness, and in particular to one kind carrying abrasionproof wind
Turbulent burner.
Background technology：
When using the stronger coal of certain abrasivenesses, boiler is faced with that the burner rate of wear is fast, and the degree of wear is serious
The phenomenon that, this makes boiler usually will burner be repaired and be replaced in a short time, and larger damage is caused to power plant
It loses.
Solve common preventing-abrasion method when burner uses abrasiveness stronger coal have it is following：Burner uses wearability
Preferable steel are manufactured；Burner position build-up wear-resistant easy to wear damages steel, and carries out thickening processing to corresponding position；Combustion
Burner position easy to wear carries out patch potsherd processing.The above Precautionary Measure can alleviate the abrasion condition of burner nozzle,
But cost is higher, and cannot fundamentally solve the wear problem of burner.
Invention content：
The object of the present invention is to provide a kind of turbulent burners with abrasionproof wind, can enhance turbulent burner and use
Anti-wear ability when the stronger coal of abrasiveness, improves the service life of burner.
In order to achieve the above objectives, what the present invention is realised by adopting the following technical scheme：
A kind of turbulent burner with abrasionproof wind, including circular First air channel, are successively set on one from the inside to the outside
Inner second air channel in the circumferential direction of secondary wind channel and outer second air channel, and be arranged in First air channel and inner second air channel
Between wall surface on abrasionproof wind channel, and the air inlet in abrasionproof wind channel is met to inner second air flow direction.
The present invention, which further improves, to be, is offered and is used on the wall surface between First air channel and inner second air channel
The through-hole in abrasionproof wind channel is installed, and the angle between the axis of the through-hole and the axis in First air channel is acute angle.
The present invention, which further improves, to be, the angle between the axis and the tangent line of its installed position in abrasionproof wind channel
For acute angle.
The present invention, which further improves, to be, circumferential on the wall surface between First air channel and inner second air channel uniformly to set
It is equipped with several abrasionproof wind channels.
The present invention, which further improves, to be, the wall surface upper edge First air between First air channel and inner second air channel is logical
The axial direction in road is provided with several columns abrasionproof wind channel.
The present invention, which further improves, to be, the internal diameter in abrasionproof wind channel is 5mm-30mm.
Compared with prior art, key problem in technology of the invention is following several points：
1) present invention for using abrasiveness stronger coal when protect turbulent burner nozzle arrangements, slow down its abrasion speed
Degree extends turbulent burner nozzle life.Its structure is as shown in Fig. 1 what Fig. 2；
2) in turbulent burner nozzle provided by the invention, in the inner second air channel outside First air nozzle wall surface,
It is uniformly distributed several abrasionproof wind channel.At work, part inner second air is by the abrasionproof wind channel from inner second air for burner
First air channel is flowed into channel, and washes away First air vias inner walls face, to the most of coal dust and one for carrying First air
Secondary wind nozzle inner walls face is isolated, and prevents pulverized coal particle from causing to wear to First air nozzle inner walls face；
3) in the turbulent burner provided by the invention with abrasionproof wind, by being evenly arranged several numbers in First air wall surface
The through-hole of amount, and lead to the hole site setting abrasionproof wind channel is corresponded in interior secondary air channel.
4) in the turbulent burner provided by the invention with abrasionproof wind, presence and the arrangement in abrasionproof wind channel make from interior two
Secondary wind channel enter the abrasionproof wind in First air channel after entering First air channel in the form of axial rotational flow along a general mood
First air nozzle inner walls face is washed away in stream direction；
5) the abrasionproof air quantity in the turbulent burner provided by the invention with abrasionproof wind is smaller, therefore will not exist to coal dust
Combustion state in burner causes harmful effect；
6) invention provided by the invention is suitable for using the stronger coal of abrasiveness, is also applied for using abrasiveness general
Coal.
Description of the drawings：
Fig. 1 is the front view of turbulent burner of the present invention；
Fig. 2 is the side view of turbulent burner of the present invention.
In figure：1 is First air channel；2 be inner second air channel；3 be outer second air channel；4 be abrasionproof wind channel.
Specific implementation mode：
Below in conjunction with attached drawing, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of turbulent burner with abrasionproof wind of the present invention, including circular First air channel
1, the inner second air channel 2 and outer second air channel 3 being successively set on from the inside to the outside in 1 circumferential direction of First air channel, and setting
Abrasionproof wind channel 4 on wall surface between First air channel 1 and inner second air channel 2, and the air inlet in abrasionproof wind channel 4 is met
To inner second air flow direction.
Preferably, it is offered on the wall surface between First air channel 1 and inner second air channel 2 for installing abrasionproof wind channel
4 through-hole, and the angle between the axis of the through-hole and the axis in First air channel 1 is acute angle, in addition, abrasionproof wind channel 4
Angle between axis and the tangent line of its installed position is acute angle.
Preferably, several abrasionproofs are circumferentially evenly arranged on the wall surface between First air channel 1 and inner second air channel 2
Wind channel 4, and the axial direction in the wall surface upper edge First air channel 1 between First air channel 1 and inner second air channel 2 be provided with it is several
Row abrasionproof wind channel 4.
When practical application of the present invention, the internal diameter in abrasionproof wind channel 4 is 5mm-30mm.
At work, part inner second air is flowed by the abrasionproof wind channel 4 out of inner second air channel 2 turbulent burner
First air channel 1, and 1 internal face of First air channel is washed away, to the most of coal dust for carrying First air and First air channel 1
Internal face is isolated, and prevents pulverized coal particle from causing to wear to 1 internal face of First air channel.
Claims (2)
1. a kind of turbulent burner with abrasionproof wind, which is characterized in that including circular First air channel (1), from the inside to the outside
The inner second air channel (2) and outer second air channel (3) being successively set in First air channel (1) circumferential direction, and be arranged one
The abrasionproof wind channel (4) on wall surface between secondary wind channel (1) and inner second air channel (2), and the air inlet in abrasionproof wind channel (4)
Mouth is met to inner second air flow direction；
It is offered on wall surface between First air channel (1) and inner second air channel (2) for installing the logical of abrasionproof wind channel (4)
Hole, and the angle between the axis of the through-hole and the axis of First air channel (1) is acute angle；
Angle between the axis and the tangent line of its installed position in abrasionproof wind channel (4) is acute angle；
Several abrasionproof wind channels are circumferentially evenly arranged on wall surface between First air channel (1) and inner second air channel (2)
(4)；
The axial direction in the wall surface upper edge First air channel (1) between First air channel (1) and inner second air channel (2) is provided with several
Row abrasionproof wind channel (4).
2. a kind of turbulent burner with abrasionproof wind according to claim 1, which is characterized in that abrasionproof wind channel (4)
Internal diameter be 5mm-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510998044.2A CN105485675B (en) | 2015-12-28 | 2015-12-28 | A kind of turbulent burner with abrasionproof wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510998044.2A CN105485675B (en) | 2015-12-28 | 2015-12-28 | A kind of turbulent burner with abrasionproof wind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485675A CN105485675A (en) | 2016-04-13 |
| CN105485675B true CN105485675B (en) | 2018-08-31 |
Family
ID=55672831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510998044.2A Active CN105485675B (en) | 2015-12-28 | 2015-12-28 | A kind of turbulent burner with abrasionproof wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485675B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048161U (en) * | 1989-03-06 | 1989-11-22 | 中国科学院力学研究所 | Anti-burn burner with air film |
| CN2531246Y (en) * | 2001-12-19 | 2003-01-15 | 薛碧 | Plug-in plate type adjustable cyclone coal burner |
| CN201672512U (en) * | 2010-05-13 | 2010-12-15 | 葛立奎 | Heat source spray nozzle for horizontal continuous carbonization converter |
| EP2597367A4 (en) * | 2011-05-27 | 2014-10-29 | Shanghai Boiler Works Ltd | Dense-phase swirl pulverized coal burner |
| CN203628642U (en) * | 2013-12-25 | 2014-06-04 | 祖月浩 | Novel stable-combustion and oil-saving pulverized coal ignition device |
| CN103791495B (en) * | 2014-02-25 | 2016-09-07 | 中国建筑材料科学研究总院 | Oxygen-enriched low-NOx pulverized coal burner and application thereof |
| CN204084351U (en) * | 2014-07-07 | 2015-01-07 | 清华大学 | A kind of turbulent burner of First air air-coal separating |
| CN205279075U (en) * | 2015-12-28 | 2016-06-01 | 西安热工研究院有限公司 | Cyclone burner with abrasionproof wind |
-
2015
- 2015-12-28 CN CN201510998044.2A patent/CN105485675B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105485675A (en) | 2016-04-13 |
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